Home / 5,232.56-7,220.76-3,135.20

Finding the Fourth Proportional to 5,232.56, 7,220.76 and 3,135.20

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Solution

The fourth proportional to 5,232.56, 7,220.76 and 3,135.20 is: 4,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,232.56 : 7,220.76 = 3,135.20 : x
  2. Step 2: Convert to fraction form
    5,232.56/7,220.76 = 3,135.20/x
  3. Step 3: Cross multiply
    5,232.56x = 7,220.76 × 3,135.20
  4. Step 4: Simplify right side
    5,232.56x = 22,638,526.75
  5. Step 5: Solve for x
    x = 22,638,526.75/5,232.56
  6. Step 6: Final answer
    x = 4,326.47

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.